<p>Cells (1×10<sup>6</sup>) were injected subcutaneously into the left flank of nude mice (n = 10). Half of these animals received oleaster leaf infusion (1%) in the feeders, while tap water was given to the other half (control). Palpable tumors were measured using a Vernier caliper for 30 days. ** and *** represent <i>p</i> < 0.01 and <i>p</i> < 0.001, respectively, as compared to group of mice receiving tap water. <i>p</i> values were obtained by one-way ANOVA, followed by Fisher’s LSD test.</p>